Globe



(No Model.)

P. P. MONTGOMERY,

GLOBE. v No. 313,752. Patented Mar. 10, 1885.

WITNESSES Ad%i9m4 NITE a'rnnr tries.

GLOBE.

SPECIFICATION forming part of Letters Patent No. 313,752, dated March10, 1835.

Application filed October SH, 1884.

To aZZ whom it may concern:

Beitknown that I, FRANK P. MONTGOMERY, of San Jos, in the county ofSanta Clara and State of California, have invented certain new anduseful Improvements in Terrestrial or Gelestial Globes; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification, and inwhich Figure 1 is a view of my improved globe, showing it inflated; andFig. 2 is a view of the same collapsed.

Similar letters of reference indicate corresponding parts in both thefigures.

My invention has relation to terrestrial or celestial globes; and itconsists in the improved construction and combination of parts of acollapsible globe having magnets at its north and south poles, whichwill cause the globe to point with its north pole toward the magneticnorth pole of the earth, the globe being piv-' oted to turn, ashereinafter more fully described and claimed.

In theaccompanying drawings, the letter A indicates the globe, which iseither made of a spherical bag of rubber or similar air-tight ma terial,or is made of a disk of wood or similar material of the diameterof theglobe, having hemispherical bags of airtight material secured to itsedges.

B is a ring, the upper portion of which is supported by a cord, 0,suitably attached above the zenith of the globe, and having a tubularpivot, D, passing through it at a point diametrically opposite to thepoint of attachment of the cord at nadir, the inner end of the saidpivot being screw-threaded and fitting into a female threaded sleeve, E,opening into the globe, while the pivot is also provided with suitablemeans for opening and closing its bore, allowing the air used forinflating the globe to be admitted into the globe or to be let out, theair passing through the pivot, the drawings showing the pivot providedwith a laterally-extending branch pipe, K, and aninwardly-openingspring-actuated valve,L. The lower pointed end of thesaid pivot rests in a suitable cup-shaped bearing, F, in the base G (Nomodel.)

of the globe. Two magnets, H and I, are secured with their inner ends inthe poles of the globe, being preferably screwed into caps J at the saidpoles, and the magnets are secured to the ring, and point with theirrespective north and south poles from the northand south poles of theglobe. In this manner it will be seen that the poles of the globe willalways point in the proper directions, the ring having free play to turnupon the pivot and upon the cord which suspends it, and it will also beseen that when the globe is not in use the air may be let out,and themagnets, pivot, ring, and cord may be separated, when the globe may bepacked into a very small space.

Havingthus described my invention, I claim and desire to secure byLetters. Patent of the United States 1. A terrestrial or celestial globesuspended or pivoted to turn, and having magnets at its poles pointingnorth and south, as and forthe purpose shown and set forth.

2. In aterrestrial or celestial globe, the combination of a sphericalbag of air-tight material having the map of the earth or of thecelestial sphere inscribed or otherwise illustrated upon it, and havingscrew-caps at its poles and a threaded sleeve at nadir, a ring susitsbore, and passing with its lower pointed end detachablythrough the ring,and the base of the globe having a cup for the reception of the point ofthe pivot, as and-for the purpose shown and set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

FRANK P. MONTGOMERY.

Witnesses:

.A. E. MoonY, -O. H. SIMoNDs.

